Note: The screen protector is intentionally cut smaller than the display because the edges are curved. There is no impact on the display quality or touchscreen functionality. You will hardly notice any difference compared to a Samsung Galaxy F13 without a screen protector. The film is scratch-resistant due to its specially hardened surface and is highly resistant to scratches and abrasion with a 4H pencil hardness. It is intentionally smaller than the Samsung Galaxy F13 glass because of the curvature (see photos), is bubble-free, and can be removed at any time without leaving residue (no adhesive). Installation is incredibly easy! With a dust-free display, no bubbles can form. When applying the film, air is displaced, and it adheres to the display as if by itself. It can be removed at any time without leaving residue! Made in Germany - construction, cutting, and finishing at fair wages in Germany.